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Iteru [2.4K]
2 years ago
5

Yassine on the football team tries to kick a football so that it stays in the air for a long "hang time". If the ball is kicked

with an initial velocity of 29.0 m/s
at an angle of 65.0° above the ground
a. What is the vertical component of the velocity?
b. What is the "hang time" (time in the air)?
1 pt for diagram or listed variables
2 pt for correct equation
2 pt for correct substitutions
1 pt for correct answer with units
Physics
1 answer:
liq [111]2 years ago
6 0
A is the answer sob I am sorry to bother
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A 5.22×104 kg railroad car moves on frictionless horizontal rails until it hits a horizontal spring stopper with a force constan
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To solve this problem we will apply the principles of conservation of energy, for which we have to preserve the initial kinetic energy as elastic potential energy at the end of the movement. If said equality is maintained then we can affirm that,

\text{Initial Energy}=\text{Final Energy}

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Here,

m = mass

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x = Displacement

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mv^2 = kx^2

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x = 32cm = 0.32m

Replacing our values we have,

v = \sqrt{\frac{(4.58*10^5)(5.22*10^4)}{0.32}}

v = 2.733*10^5m/s

Therefore the velocity is 2.733*10^5m/s

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4 years ago
Dòng điện dịch là:
yarga [219]

Answer: the answer is a

Explanation:

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brainly.com/question/7670779

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